Originally Posted by
nabeelj
I found another post here (can't find the post right now) that suggested it's a security feature for accounts that haven't redeemed in a long time. Not sure if that's true.
Here is the post suggesting it's a security feature -
https://www.flyertalk.com/forum/33964745-post252.html
In my case, even after redeeming for my F&F over the phone, a dummy booking tried right now still doesn't allow me to change the first passenger when selecting No to the question mentioned.